C++

Eskil Abrahamsen Blomfeldt

Implementing in app purchase on Android

Published Thursday December 12th, 2013 | 3 Comments on Implementing in app purchase on Android
Posted in Android, C++, Qt, Qt in use, Qt Quick, Qt Quick 2, Qt Quick 2.0, Tutorial

In-app purchase is an increasingly popular form of application monetization, especially in saturated markets such as the mobile apps markets, since it enables users to download applications for free and try them out before they pay. When the only thing you have to lose is time, the threshold for installing an unknown application is likely […]

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Eskil Abrahamsen Blomfeldt

Anatomy of a Qt 5 for Android application

Published Tuesday July 23rd, 2013 | 41 Comments on Anatomy of a Qt 5 for Android application
Posted in Android, C++, cross-platform, integration, QPA, Qt, Qt in depth

To those of you who were at the Contributor’s Summit, I said that I would write a few more technical blogs about Qt 5 for Android in the near future. This first blog accompanies my session at the CS quite well, as it will give some insight into how the different pieces in the Qt […]

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Titta Heikkala

How to tile widgets in a multiple document interface application

Published Monday April 29th, 2013 | 6 Comments on How to tile widgets in a multiple document interface application
Posted in C++, Customers, Qt

In Qt you can create multiple document interface (MDI) applications using a QMdiArea as the central widget. The QMdiArea widget serves as a window manager for the MDI windows. There are already functions available for tiling all the child windows into a tile pattern and for cascading them into a cascade pattern. With MDI application […]

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Kai Koehne

Using gcc’s 4.8.0 Address Sanitizer with Qt

Published Wednesday April 17th, 2013 | 19 Comments on Using gcc’s 4.8.0 Address Sanitizer with Qt
Posted in Build system, C++, Compilers, Debugging, Qt | Tags: , , , ,

One of the cool new features of gcc 4.8 is the built in “Address Sanitizer”: a memory error detector for C/C++ that will tell you instantly when you e.g. access already deleted memory. This is actually a Google project from Clang/LLVM, so for LLVM users this might be old stuff, but it wasn’t for me […]

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Titta Heikkala

Qt Support #28 – Creating a toolbar widget that is displayed with the context menu

Published Friday December 7th, 2012 | 30 Comments on Qt Support #28 – Creating a toolbar widget that is displayed with the context menu
Posted in C++, Customers, Qt

You have probably seen applications that have a toolbar shown with a context menu. The toolbar enables the fast use of selected set of actions. Let’s take a look how you can create such a toolbar widget with Qt. As the toolbar widget will be connected to the context menu of the application you will […]

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RPATH and RUNPATH

Published Friday October 28th, 2011 | 6 Comments on RPATH and RUNPATH
Posted in C++ | Tags: , , , , , , , ,

The DT_RPATH tag is commonly set in executables that depend on libraries that can’t be found in the default locations. For instance Qt Creator comes with its own copy of the Qt libraries and has an rpath to the directory that contains them. It’s also useful when you build your own version of Qt without […]

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